I strangely still think Tessek is near perfect. I love that figure, and the POTJ era in general. Ishi Tib for sure. Bib I never get excited for in any version, but I'd go for an update.
I agree that the sculpt on Tessek is still excellent, but the amount of gesturing that you can do with the new Yakface makes me want upgraded versions of some of the standout palace guests. The POTJ Tessek really only has one pose, and his cape is really stiff, so no one can stand near him.
Bib doesn't need to get into ninja poses, but he definitely needs to be able to be more expressive, and that'll take articulation.
Definitely agree on the JP Snag, Jesse. I've come so close over the years to just finally banging out a custom of him, but I never pulled the trigger because I feel like we'll get him eventually. The Ketanna release may see a nice little surge of Jabba-related characters, so I'll hold off again.
It's funny, I definitely know that the Ishi Tib figure we have is from Home One, but I've never displayed him there. He's always in Jabba's palace because that's where I associate him with. When we get a new version I'll slot him into the rebel collection finally.
I'd also say it's time for the Max Rebo band to see a complete resculpt. Especially if it comes with a pre-special edition Sy Snootles.